W. R. Grace Co.-conn.

Robert H Harding

James Neil Pryor

Richard Franklin Wormsbecher

Michael Scott Ziebarth

Demetrius Michos

James George Miller

Michael D Amiridis

Disclosed are silica bound zeolite adsorbent particles which possess high volumetric gas adsorption capacity for the adsorption and/or desorption of gases. The adsorbent are highly effective as a gas source in volumetrically constrained applications. The silica-bound zeolite adsorbents possess a relatively high zeolite content simultaneously with a relatively low intra-particle pore volume as compared to the clay bound zeolite aggregates heretofore used as a gas source in volumetrically constrained environments, e.g. instant beverage carbonation processes, devices or systems.

Zeolite particles for adsorption and/or desorption of gases and liquids

Compositions which contain a titania component have been found which provide reduction of sulfar levels in the gasoline resulting from FCC processes (and other cracking processes conducted in the absence of added hydrogen) without the need for feedstock pretreatments nor added hydrogen. The compositions preferably also contain an alumina supported Lewis acid component. These compositions are preferably used as particles in admixture with catalytic cracking catalyst particles in the circulating catalyst inventory.

Compositions for use in catalytic cracking to make reduced sulfur

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Ellicott City, MD, United States of America

Robert H Harding